Answer:
[tex]9c+5.9d-7.9[/tex]
Step-by-step explanation:
[tex]-\left(-9c-5.9d+7.9\right)[/tex]
[tex]\mathrm{Distribute\:parentheses}[/tex]
[tex]=-\left(-9c\right)-\left(-5.9d\right)-\left(7.9\right)[/tex]
[tex]\mathrm{Apply\:minus-plus\:rules}[/tex]
[tex]-\left(-a\right)=a,\:\:\:-\left(a\right)=-a[/tex]
[tex]=9c+5.9d-7.9[/tex]
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There is a bag filled with 6 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 of the same colour?
please explain
Answer:
the probability of the same colour being taken from the bag is a 5:5 ratio if the first marble is not put back
Step-by-step explanation:
Martin bikes at a constant speed to a finish line that is 15 mi away. After 20 mins, he is 10 mi from the finish line. After 30 mins, he is 7.5 mi from the finish line. If a graphics shows his distance y from the finish line, in miles, after x minutes, what is the slope of the graph, and what does it represent? A) 15; Martin’s initial distance from the finish line. B) 15; Martin’s final distance from the finish line. C) -0.25; the rate at which Martin’s distance from the finish line changes per minute. D) -0.25; the rate at which Martin’s distance from the start line changes per minute
Answer:
I believe the answer would be C
Was is 9 Divided 3103
Answer:
0.003 but if you just put that in backwards, 345.
Step-by-step explanation:
Answer:
[tex]344\\9*344=3096\\3103-3096=7\\\\344\\Remainder = 7[/tex]
↓ Step Breakdown ↓
How I got 344 was I asked myself, "How many times does 9 go into 3103?"
To the 1st digit manner, 9 goes into 31(03) 3 times.
Subtract.
Result is 4. Drop the 0 from the tens place to match up.
9 goes into 4(0) 4 times.
Subtract.
The result is 4. Drop the 3 from the ones place.
9 goes into 4(3) 4 times.
Final subtraction.
The final result is 7.
Hunter kicked a soccer ball. The ball went 332 yards in 38 second. At that rate, how far would the ball go in 1 second?
The distance that he would the ball go in 1 second will be 8.8 yards.
How to calculate the rate?From the information, Hunter kicked a soccer ball. The ball went 332 yards in 38 second.
Therefore, at that rate, the distance that he would the ball go in 1 second will be:
= Total distance / Time
= 332 / 38
= 8.8 yards.
Learn more about rate on:
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Define operation $\heartsuit$ so that \[ a \heartsuit b = \dfrac{a + b}{2}. \] Let $H$ be a function defined by \[H(x,y,z) = \left(x \heartsuit y\right) \heartsuit z - x \heartsuit \left(y \heartsuit z\right). \] Write an expression for a simplified version of this function: $H(x,y,z) = \boxed{\phantom{blaaaaaaaaaa^2_2}}$ Write an expression, not an equation. Sample answer: $x + y + z$
Answer:
(-x+z)/4
Step-by-step explanation:
Evaluate the $\heartsuit$ operation to simplify.
\begin{align*}
H(x,y,z) &= \left(x \heartsuit y\right) \heartsuit z - x \heartsuit \left(y \heartsuit z\right) \\
&= \left(\dfrac{x+y}{2}\right) \heartsuit z - x \heartsuit \left(\dfrac{y+z} 2\right) \\
&= \dfrac{\dfrac{x+y}{2} + z}{2} - \dfrac{x + \dfrac{y+z}{2}}{2}
\end{align*}This looks ugly, but it works out! Continue by multiplying each fraction's numerator and denominator by $2$, in order to eliminate the complex fractions.
\begin{align*}
H(x,y,z) &= \dfrac{\dfrac{x+y}{2} + z}{2} - \dfrac{x + \dfrac{y+z}{2}}{2} \\
&= \dfrac{x + y + 2z}{4} - \dfrac{2x + y + z}{4} \\
&= \dfrac{(x+y+2z) - (2x + y + z)}{4}
&= \dfrac{-x+z}{4}
\end{align*}Surprisingly it simplifies all the way down to $H(x,y,z) = \boxed{\dfrac{-x + z}{4}}$. The value of $y$ is not even used!
Write an equation of a line that passes through the point (0,-2) and is perpendicular to the image shown.
options:
y= 3x −2
y= −1/3x − 2
y= 1/3x
y= 3x − 10
Answer:
Brainliest Answer would be appreciated. Option 1 is the best
Step-by-step explanation:
The slope of the line on the graph is -1/3. A perpendicular line's slope is always the negative reciprocal of it, so your slope of the perpendicular line would be 3.
Also, since you are passing through the point (0, -2), -2 would be your y-intercept, making your equation for the perpendicular line y = 3x - 2.
find the simple intrest on rs 1200 at 5%per annum for 2 years
Answer:
Rs.120
Step-by-step explanation:
given,
Principal (P) = Rs.1200
Time (T) = 2 yrs
Rate (R) = 5%
Simple interest = ?
solution,
simple interest = PTR/100
= Rs.1200*2*5/100
= Rs.12000/100
= Rs.120
Therefore,the simple interest is Rs.120.
Write as many expressions as you can for
this picture:
How do u do this
A profit of Rs. 30,000 is to be distributed among A, B and C in
the proportion 3:5:7 respectively. What will be the difference
between B's and C's amount?
Answer:
4000
Step-by-step explanation:
Split in a ratio of 15.
30000/15 = 2000
7x2000 - 5x2000 = 4000
4000
Answer:
4000
Step-by-step explanation:
A:B:C=3:4:7
And profit =30,000
(A+B+C)*x=3+5+7=15x
And then 15X=30,000
X=2000
Know difference between B and C
(B-C)x=7-5=2
Know difference between B and c is
2000*2
Ans 4000
q-10=6(r+1)
rearrange the equation so r is the independent variable
Answer:
r = (q-16)/6
Step-by-step explanation:
q-10 = 6(r+1)
q-10 = 6r+6
q-10-6 = 6r
q-16 = 6r
r = (q-16)/6
In your own words, explain why when we multiply terms that have the same bases, we add the exponents.
When multiplying exponents, remember the first rule: when multiplying similar bases, add powers together. 52% + 56% =? The bases of the equation remain unchanged, while the exponents' values are added together. Adding the exponents is only a quick way to get at the answer. Simply add the exponents to multiply exponential expressions with the same base. Simplify. The product rule applies because the base of both exponents is a. With a common basis, add the exponents.
Find the value of x.
Answer:
A or B
Step-by-step explanation:
The value of x is 38
First, you must subtract 180 by 105 to get the bottom left corner measurement.
[tex]180-105=75[/tex]
Then, you must add the two measurements you and subtract from 180 to find x
[tex]75+67=142[/tex]
[tex]180-142=38[/tex]
What is the solution to this equation?
-1.3 x =78
A. x= -6
B. x= -60
C. x =6
D. x =60
6. Evaluate the following expression:
(6 + h-j)/2 Where h = 6 andj = 4
2
=
-
Step-by-step explanation:
is j= 42
I can't understand the question properly
The functions r and s are defined as follows. r(x)=2x-2 s(x)=-x^2 find the value of s(r(-3)) (please help!)
Solving equation s(r(x)) for x= -3, you find as result s(r(-3))=-64
Solving EquationsThe equations can be solved when you replace the variable x for a given value or find the zero of functions.
The question gives:
r(x)=2x-2
s(x)=-x²
First, you will find r(-3). For this, in the equation r(x)=2x-2, you should replace x for -3. Then,
r(x)=2*(-3)-2
r(x)=-6-2= -8
Like r(-3)= -8, you should replace x, in s(x), for -8.
s(x)=-(-8)²
s(x)=-64
Hence, s(r(-3)=-64.
Read more about functions here:
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what's 10+70x40/9=
/=division sign
Answer:
dfsvdfsfds
Step-by-step explanation:
fdsfsdfsdfsd
Answer:
321.111111111
Step-by-step explanation:
math
3(q - 7) = 27
Solve for q
Answer:
3(q-7)=27
3q-21=27
3q=48
q=16
Step-by-step explanation:
please pass this on... ( #helpsavelives )
Who ever is reading this:
I love u.
U matter.
The world needs u
hang in there ik it may be bad but u deserve the world <3
ur beautiful no matter ur shape, size, color, gender.. anything
don't give up i need u to live.
i wish i could take everyones problems so yall wouldn't have to have em but i cant so just know ily and if anyone needs to talk u can talk to me
Pls pass this on. Everyone deserves to know this. ♥️♥️
just copy and paste its not hard pls this could save someones life
Answer:
q = 16
Step-by-step explanation:
3(q - 7) = 27
3q - 21 = 27 | +21
3q = 48 | :3
q = 16
What is the length of bd
Answer:
B
Step-by-step explanation:
I would use the Pythagorean theorem to solve distances between 2 points, and this case is no exception.
We need to find the positive difference in their x coordinates and y coordinates.
The difference in x coordinates: 7
The difference in y coordinates: 8
Now we can use the Pythagorean theorem:
7^2+8^2 = x^2
49+64 = x^2
113 = x^2
x = sqrt(113)
Therefore, the answer is B.
which is the most reasonable measure for the capacity of a bathtub?
5 liters
159 liters
159 milliliters
1000 milliliters
helpp! pls
Answer:
5 liters
Step-by-step explanation:
because using more can give you more numbers and it just gets confusing
2. A door is 80 cm wide. What
would be the width of the door
on a diagram with a scale of
1:20.
What are the coefficient(s) in the expression: 3x+2r-7
Answer:
3
Step-by-step explanation:
Find AD. Help please please
Answer:
AD = 13
Step-by-step explanation:
AD --> -7
D --> 6
-7 + AD = 6
AD = 6+7
AD = 13
Answer:
13 that the correct answer of have u gatten it before
i need help i dont remember this
Answer:
B
Step-by-step explanation:
Closed circle for the less than or equal to sign then x is less then 3 so it would have to go to the negatives
Answer:
B
Step-by-step explanation:
the awnser is be because that sign in between x and 3 means equal to or less than. so x can be equal to or less than 3. and a closed circle means x can be equal to 3. and the line goes towards the negative because x has to be LESS THAN or equal to 3.
Hope this helps!!
brainlest??
Which of the following is the measure of the largest angle in the triangle shown?
19x + 7x + 10x = 180°
36x = 180
x = 5°
largest angle = 19 * 5 = 95°
Answer:
C. 95°
Step-by-step explanation:
19x+ 7x +10x = 180 (sum of the interior angles of a triangle is 180)
36x = 180
x= 180÷36
x= 5
Magnitude of the largest angle
= 19× x
= 19× 5
= 95
Marcy decided to start a new business of walking dogs. She designed a flier to advertise her business to her neighbors. She had 100 fliers printed. The copy center charged 7° per copy for the first ten ¢ copies and then 5¢ for each additional copy. What was the total cost of the fliers?
Answer:
?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
Step-by-step explanation:
Slope of x 15 17 19 21 y -10 2 14 26
Answer:
6
Step-by-step explanation:
the xs increase by 2 and the ys increase by 12 12/2 is 6
A button has a diameter of 4 centimeters. What is the area of the button
diameter = 4 cm
so radius r = 4 : 2 = 2 cm
area of a circle = pi x r² ≈ 3,14 x 2² = 12,56 cm²
What is the value of m in the equation 5m − 7 = 6m 11? 18 1 −18 −1.
Answer:
-7 = m
Step-by-step explanation:
5m − 7 = 6m
Subtract 5m from each side
5m-5m − 7 = 6m-5m
-7 = m
What is 104 divided by 251
Answer:
0.414
Step-by-step explanation:
0. 4 1 4
2 5 1 1 0 4. 0 0 0
− 0
1 0
− 0
1 0 4
− 0
1 0 4 0
− 1 0 0 4
3 6 0
− 2 5 1
1 0 9 0
− 1 0 0 4
8 6
(I don't know if this model helps? Its my first time trying this technique online.)
please help mgfdsahjmk,l.
Answer:
Park to the Ice-cream parlor
Step-by-step explanation:
She moved from the Park to the Ice-cream parlor
Hope this helps!